In this paper,we propose a photonic crystal fiber(PCF)sensor based on the surface plasmonic resonance(SPR)effect for simultaneous temperature and refractive index(RI)measurement.The coupling characteristics and sensin...In this paper,we propose a photonic crystal fiber(PCF)sensor based on the surface plasmonic resonance(SPR)effect for simultaneous temperature and refractive index(RI)measurement.The coupling characteristics and sensing performance of the sensor are analyzed using the full vector finite element method(FEM).The sensor provides two channels for independent measurement of RI and temperature.When operating independently,channel I supports y-polarized light with a sensitivity of up to 7000 nm/RIU for detecting RI,while channel II supports x-polarized light with a sensitivity of up to 16 nm/℃for detecting temperature.Additionally,we investigate the influence of gold layer thickness on the sensing performance to optimize the sensor.展开更多
基金supported by the Natural Science Foundation of Tianjin City(No.19JCYBJC17000)the National Natural Science Foundation of China(No.11905159).
文摘In this paper,we propose a photonic crystal fiber(PCF)sensor based on the surface plasmonic resonance(SPR)effect for simultaneous temperature and refractive index(RI)measurement.The coupling characteristics and sensing performance of the sensor are analyzed using the full vector finite element method(FEM).The sensor provides two channels for independent measurement of RI and temperature.When operating independently,channel I supports y-polarized light with a sensitivity of up to 7000 nm/RIU for detecting RI,while channel II supports x-polarized light with a sensitivity of up to 16 nm/℃for detecting temperature.Additionally,we investigate the influence of gold layer thickness on the sensing performance to optimize the sensor.